function plotData(X, y)
	%	Open a new figure window	
	figure;
	% 	Plot the data
	% 	Options: 'r' --- red, 'x' --- cross, 'Markersize' --- the size of cross is 10
	plot(X, y, 'rx', 'MarkerSize', 10);
	% 	Set the x−axis label
	xlabel('Population of City in 10,000s');
	% 	Set the y−axis label
	ylabel('Profit in $10,000s');
end
